Home / 2,137.89-2,951.66-1,342.31

Finding the Fourth Proportional to 2,137.89, 2,951.66 and 1,342.31

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Solution

The fourth proportional to 2,137.89, 2,951.66 and 1,342.31 is: 1,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.89 : 2,951.66 = 1,342.31 : x
  2. Step 2: Convert to fraction form
    2,137.89/2,951.66 = 1,342.31/x
  3. Step 3: Cross multiply
    2,137.89x = 2,951.66 × 1,342.31
  4. Step 4: Simplify right side
    2,137.89x = 3,962,021.26
  5. Step 5: Solve for x
    x = 3,962,021.26/2,137.89
  6. Step 6: Final answer
    x = 1,853.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.